Examine source code of ChatGPT ConvDown

{
  "manifest_version": 2,
  "name": "ChatGPT ConvDown",
  "description": "Downloads the current thread from your conversation with ChatGPT as plain text.",
  "version": "7.2",
  "homepage_url": "https://github.com/esteinmann/chatgpt-convdown",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "web_accessible_resources": [
    "media/*"
  ],
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "clipboardWrite",
    "storage",
    "webNavigation",
    "*://chat.openai.com/chat/*",
    "*://chatgpt.com/**"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6d166753-6d4d-42aa-b190-5bdddde63688}"
    }
  },
  "commands": {
    "download": {
      "description": "Downloads the conversation",
      "suggested_key": {
        "default": "Ctrl+Alt+S"
      }
    },
    "copy": {
      "description": "Copy the conversation to clipboard",
      "suggested_key": {
        "default": "Ctrl+Alt+C"
      }
    }
  }
}